This drama tells the story of the protagonist Haneda Mei who wakes up and loses her memory for a year... Moreover, she has changed her "unsatisfactory and dull daily life" before losing her memory, and now has a lifelong partner, social status, and a unique friend who was thought to have died. Although Mei is confused, she still feels that she has gained the happiness she has longed for. "But that... is full of lies..." Mei gradually begins to have important things taken away by people around her, including her friends. Moreover, she is labeled as a "murder suspect" for "murder". "What happened in the blank year when I lost my memory?" When Mei, who is determined to pursue her memory, approaches the truth, there is an amazing secret hidden behind the trap set.